Permanent magnet assisted synchronous reluctance motor is a fully enclosed, self-fan air-cooled ultra-efficient three-in-one assisted magnetic synchronous reluctance motor designed and manufactured by adopting the new type of assisted magnetic synchronous reluctance motor technology. The energy efficiency meets the first-level energy efficiency requirements of the national standard (IEC standard: IE5), featuring high efficiency, large starting torque, low noise and vibration. The motor does not contain rare earth permanent magnetic materials inside, featuring a simple structure, stability and reliability. It adopts a standard medium and small-sized asynchronous motor casing, which is convenient for on-site replacement and can also be reduced by 1 to 2 frame sizes.